Hydro electric station is installed to utilise 30 ma/sec of water of a river at a head of 7.5 m. If 85% turbine efficiency can be counted on, (i) is it feasible to develop this power by two turbines with rpm not less ? than 50, the turbine having specific speed not greater than 540 rpm (ii) what type of runner will be used ? (iii) what is the diameter of runner if the speed ratio is 0.85? [(i) N= = 156'5 rpm, .. yes (ii) Kaplan (iii) P25 m]
Hydro electric station is installed to utilise 30 ma/sec of water of a river at a head of 7.5 m. If 85% turbine efficiency can be counted on, (i) is it feasible to develop this power by two turbines with rpm not less ? than 50, the turbine having specific speed not greater than 540 rpm (ii) what type of runner will be used ? (iii) what is the diameter of runner if the speed ratio is 0.85? [(i) N= = 156'5 rpm, .. yes (ii) Kaplan (iii) P25 m]
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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![Hydro electric station is installed to utilise 30 ma/sec of water of a river at
a head of 7.5 m. If 85% turbine efficiency can be counted on,
(i) is it feasible to develop this power by two turbines with rpm not less
than 50, the turbine having specific speed not greater than 540 rpm ?
(ii) what type of runner will be used ?
(iii) what is the diameter of runner if the speed ratio is 0.85?
[(i) N = 156'5 rpm, .. yes (ii) Kaplan (iii) P25 m]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6a3c76fb-6a08-4e58-9542-a1fb8399bef2%2Ff1ee998b-fd4a-415c-a4ba-ad7f1d1b29fa%2Fij02kob_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Hydro electric station is installed to utilise 30 ma/sec of water of a river at
a head of 7.5 m. If 85% turbine efficiency can be counted on,
(i) is it feasible to develop this power by two turbines with rpm not less
than 50, the turbine having specific speed not greater than 540 rpm ?
(ii) what type of runner will be used ?
(iii) what is the diameter of runner if the speed ratio is 0.85?
[(i) N = 156'5 rpm, .. yes (ii) Kaplan (iii) P25 m]
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